Killzone 2 ships 600,000 in NA, first DLC due April

Speaking to Game Daily, Sony Computer Entertainment of America vice president of product marketing Scott Steinberg said this week that Killzone 2 sales have "exceeded our expectations," having surpassed the 500,000 unit mark. [UPDATE] GameSpot has since confirmed with Sony that Killzone 2's most-recent sell-through total--meaning copies of the game sold to retailers--stands at 600,000 units in North America only.

"Killzone 2 has been the fastest SCEA PS3 title to break the 500,000 unit mark and it's also the highest selling SCEA PS3 title for the first 30 days out of launch," Steinberg told Game Daily. "So far, we are extremely happy with the results."

To keep that 500,000-strong army interested in the title, Guerrilla Games has also detailed the first batch of downloadable content for the shooter. Speaking to Game Trailers last night, Guerrilla Games managing director Hermen Hulst revealed that the first DLC pack, titled Steel and Titanium, will contain two multiplayer maps. Pricing information was not detailed, but Hulst did confirm that the pack will be available "toward the end of April."

The first map is set aboard the ISA tech cruiser New Sun, and Hulst noted that gameplay will focus on vertically oriented firefights. "You've got multiple decks, so you'll be shot at from walkways upstairs as well as downstairs," he said. The second map takes place aboard two high-speed Helghast freight trains, with gamers tasked with navigating the precarious routes between the two speeding bullets.

"These are two fan favorite settings from single-player that we're bringing over," commented Hulst on the upcoming maps. "However, going forward, you're going to get some proper new features as well." As for those future releases, Hulst teased that the next DLC pack will revive a number of maps from the original Killzone, released for the PlayStation 2 in 2004.